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IMPACT model for 6 month outcome after TBI

1 forms  
Core data
Description

Core data

Age
Description

Age

Data type

integer

Measurement units
  • years
Alias
UMLS CUI [1]
C0001779
Motor score
Description

Motor score

Data type

integer

Alias
UMLS CUI [1]
C2960436
Pupillary reactivity
Description

Pupillary reactivity

Data type

integer

Alias
UMLS CUI [1]
C0234671
CT data
Description

CT data

Hypoxia
Description

Hypoxia

Data type

integer

Alias
UMLS CUI [1]
C0242184
Hypotension
Description

Hypotension

Data type

integer

Alias
UMLS CUI [1]
C0020649
CT classification
Description

CT classification

Data type

integer

Alias
UMLS CUI [1]
C0040405
Traumatic subarachnoid hemorrhage (CT)
Description

Traumatic subarachnoid hemorrhage

Data type

integer

Alias
UMLS CUI [1]
C0038525
Epidural hematoma (CT)
Description

Epidural hematoma

Data type

integer

Alias
UMLS CUI [1,1]
C0014537
UMLS CUI [1,2]
C0018944
Sub score CT
Description

Sub score CT = hypoxia + hypotension + CT characteristics

Data type

integer

Alias
UMLS CUI [1,1]
C0449820
UMLS CUI [1,2]
C0040405
Lab data
Description

Lab data

Glucose
Description

Glucose

Data type

integer

Measurement units
  • mmol/L
Alias
UMLS CUI [1]
C0202042
Hb
Description

Hemoglobin

Data type

integer

Measurement units
  • g/dL
Alias
UMLS CUI [1]
C0019046
Sub score lab
Description

glucose + Hb

Data type

integer

Alias
UMLS CUI [1]
C0202113
Sum scores
Description

Sum scores

Sum score: core model
Description

Sum score core model = age + motor score + pupillary reactivity. The probability of 6 mo outcome is defined as 1 / (1+e^-LP), where LP refers to the linear predictor in a logistic regression model. LP core, mortality = -2.55 + 0.275 x sum score core. LP core, unfavorable outcome = -1.62 + 0.299 x sum score core.

Data type

integer

Alias
UMLS CUI [1]
C2964552
Sum score: extended model
Description

Sum score extended model = core + hypoxia + hypotension + CT characteristics. The probability of 6 mo outcome is defined as 1 / (1+e^-LP), where LP refers to the linear predictor in a logistic regression model. LP extended, mortality = -2.98 + 0.256 x (sum score core + subscore CT). LP extended, unfavorable outcome = -2.10 + 0.276 x (sum score core + subscore CT).

Data type

integer

Alias
UMLS CUI [1]
C2964552
Sum score: lab model
Description

Sum score lab model = core + hypoxia + hypotension + CT + glucose + Hb. The probability of 6 mo outcome is defined as 1 / (1+e^-LP), where LP refers to the linear predictor in a logistic regression model. LP lab, mortality = -3.42 + 0.216 x (sum score core + subscore CT + subscore lab). LP lab, unfavorable outcome = -2.82 + 0.257 x (sum score core + subscore CT + subscore lab).

Data type

integer

Alias
UMLS CUI [1]
C2964552
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Similar models

IMPACT model for 6 month outcome after TBI

1 forms
Name
Type
Description | Question | Decode (Coded Value)
Data type
Alias
Item Group
Core data
Item
Age
integer
C0001779 (UMLS CUI [1])
Age
Code List
Age
CL Item
≤30 (0)
CL Item
30-39 (1)
CL Item
40-49 (2)
CL Item
50-59 (3)
CL Item
60-69 (4)
CL Item
70+ (5)
Item
Motor score
integer
C2960436 (UMLS CUI [1])
Motor score
Code List
Motor score
CL Item
None/extension (6)
C0231448 (UMLS CUI-1)
(Comment:en)
CL Item
Abnormal flexion (4)
C1290991 (UMLS CUI-1)
(Comment:en)
CL Item
Normal flexion (2)
C1290990 (UMLS CUI-1)
(Comment:en)
CL Item
Localizes/obeys (0)
C0517994 (UMLS CUI-1)
(Comment:en)
CL Item
Untestable/missing (3)
(Comment:en)
Item
Pupillary reactivity
integer
C0234671 (UMLS CUI [1])
Pupillary reactivity
Code List
Pupillary reactivity
CL Item
Both pupils reacted (0)
C0437599 (UMLS CUI-1)
(Comment:en)
CL Item
One pupil reacted (2)
C0437599 (UMLS CUI-1)
(Comment:en)
CL Item
No pupil reacted (4)
C0437599 (UMLS CUI-1)
(Comment:en)
Item Group
CT data
Item
Hypoxia
integer
C0242184 (UMLS CUI [1])
Hypoxia
Code List
Hypoxia
CL Item
Yes or suspected (1)
CL Item
No (0)
Item
Hypotension
integer
C0020649 (UMLS CUI [1])
Hypotension
Code List
Hypotension
CL Item
Yes or suspected (2)
CL Item
No (0)
Item
CT classification
integer
C0040405 (UMLS CUI [1])
CT classification
Code List
CT classification
CL Item
I (-2)
CL Item
II (0)
CL Item
III/IV/V/VI (2)
Item
Traumatic subarachnoid hemorrhage (CT)
integer
C0038525 (UMLS CUI [1])
Traumatic subarachnoid hemorrhage
Code List
Traumatic subarachnoid hemorrhage (CT)
CL Item
Yes (2)
CL Item
No (0)
Item
Epidural hematoma (CT)
integer
C0014537 (UMLS CUI [1,1])
C0018944 (UMLS CUI [1,2])
Epidural hematoma
Code List
Epidural hematoma (CT)
CL Item
Yes (-2)
CL Item
No (0)
Sub score CT
Item
Sub score CT
integer
C0449820 (UMLS CUI [1,1])
C0040405 (UMLS CUI [1,2])
Item Group
Lab data
Item
Glucose
integer
C0202042 (UMLS CUI [1])
Glucose
Code List
Glucose
CL Item
<6 (0)
CL Item
6-8.9 (1)
CL Item
9-11.9 (2)
CL Item
12-14.9 (3)
CL Item
15+ (4)
Item
Hb
integer
C0019046 (UMLS CUI [1])
Hemoglobin
Code List
Hb
CL Item
<9 (3)
CL Item
9-11.9 (2)
CL Item
12-14.9 (1)
CL Item
15+ (0)
Sub score lab
Item
Sub score lab
integer
C0202113 (UMLS CUI [1])
Item Group
Sum scores
Sum score core model
Item
Sum score: core model
integer
C2964552 (UMLS CUI [1])
Sum score extended model
Item
Sum score: extended model
integer
C2964552 (UMLS CUI [1])
Sum score lab model
Item
Sum score: lab model
integer
C2964552 (UMLS CUI [1])
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